太赫兹二维成像技术研究进展

Research progress of two-dimensional terahertz imaging technology

太赫兹成像技术在人体安检、无损探伤、质量监控、生物医学、半导体特性表征等许多领域展现出广泛的应用前景。本文综述了各类太赫兹二维成像技术,包括太赫兹扫描成像、太赫兹单像素成像、电光调制太赫兹成像、太赫兹相机直接成像等技术,综述各类成像技术的研究背景,分析了具体的成像方法和成像结果,总结了不同太赫兹成像技术的优缺点并对今后太赫兹成像技术的发展趋势做出展望。

Terahertz(THz)imaging has shown wide application prospects in many fields such as human body security inspection,non-destructive inspection,quality monitoring,biomedicine,and semiconductor characterization.In this article,various two-dimensional THz imaging techniques are reviewed,including scanning imaging,single-pixel imaging,electro-optic modulation imaging,direct imaging with THz camera,and so on.The research backgrounds of various imaging technologies are summarized,the specific imaging methods and imaging results are analyzed.The advantages and disadvantages of different terahertz imaging technologies are concluded,and the future development trends of terahertz imaging technologies are forecasted.